Functional requirements: the device should be wearable in contact with the skin, and it must not use electromagnetic radiation. It must be simple and safe.
Usability requirements: The device has to be intuitive, to be used by all women, also without a medical background. It has to be wearable, for increasing the patient's comfort.
Safety requirements: The device should has not particular risks as it is intended for Self Examination device and not for diagnosis. Because it should mimic the breast palpation, the stress to be applied on the body will be low or moderate.